(toplevel patch) Real make targets for configure-target-*

[DJ Delorie]

> 	* configure.in: Introduce BASE_CC_FOR_TARGET.
> 	* Makefile.tpl: Realize configure-target-* targets.
> 	* Makefile.in: Regenerate.

Ok with the addendum, but...

> +$(TARGET_SUBDIR)/[+module+]/Makefile: config.status $(TARGET_SUBDIR)/[+module+]/multilib.out
> +	@[ -d $(TARGET_SUBDIR)/[+module+] ] || mkdir $(TARGET_SUBDIR)/[+module+];\

This mkdir isn't needed.